Decorative exterior lamp



FIG. 1 is perspective view of a decorative exterior lamp showing my newdesign;

FIG. 2 is a front elevation view thereof, the rear elevation view beingidentical thereto;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side elevation view thereof, the right side elevationview being identical thereto; and,

FIG. 5 is a bottom plan view thereof.

The standard is shown in broken lines in FIG. 1 for illustrativepurposes only and forms no part of the claimed design.

The ornamental design for a decorative exterior lamp, as shown anddescribed.